package com.powernode.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.RedisSerializer;

import java.time.Duration;

/**
 * redis缓存配置类
 */
@Configuration
public class RedisCacheConfig {

    @Bean
    public RedisCacheConfiguration redisCacheConfiguration(){
        RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig();
        redisCacheConfiguration.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(RedisSerializer.json()))//设置redis值的序列化方式
                .entryTtl(Duration.ofDays(7)) // 统一设置redis中值的默认过期时间（7天）
                .disableCachingNullValues();// redis的value值禁止使用空值

        return redisCacheConfiguration;
    }
}
